Global Patent Index - EP 1964814 A1

EP 1964814 A1 20080903 - Aeration device for clarifiers

Title (en)

Aeration device for clarifiers

Title (de)

Belüftungseinrichtung für Klärbecken

Title (fr)

Dispositif d'aération pour des réservoirs de décantation

Publication

EP 1964814 A1 20080903 (DE)

Application

EP 07004096 A 20070228

Priority

EP 07004096 A 20070228

Abstract (en)

The aerator for clarification tanks, comprises polyurethane walls having perforation, in the form of air discharge openings (2), which are formed in slit, ring and/or I-form. The aerator is formed as a tube (1) and the perforation extends itself over a part of the length and the periphery of the tube. A part of the aerator is treated with a lubricant or fungicide. The aerator and/or its walls are produced through the addition of diphenylmethane-4,4'-diisocyanate and/or toluene diisocyanate as diisocyanate component during extrusion.

Abstract (de)

Beltiftungseinrichtung zur Belüftung von Klärbecken aus thermoplastischem Polyurethan, wobei das Polyurethan aus polymeren Ethereinheiten und/oder polymeren Estereinheiten aufgebaut ist, die durch Urethangruppen miteinander verbunden sind. Die Beluftungseinrichtung weist eine zumindest über einen Teil ihrer Länge verlaufende und zumindest über einen Teil ihres Umfangs verlaufende Perforation auf.

IPC 8 full level

C02F 3/20 (2006.01); B01F 3/04 (2006.01)

CPC (source: EP)

B01F 23/23122 (2022.01); B01F 23/231231 (2022.01); B01F 23/231232 (2022.01); B01F 23/231281 (2022.01); C02F 3/20 (2013.01); Y02W 10/10 (2015.05)

Citation (search report)

Citation (examination)

Designated contracting state (EPC)

DE

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1964814 A1 20080903

DOCDB simple family (application)

EP 07004096 A 20070228